用途
预绞式护线条用来保护导线免受振动、线夹压应力、摩擦磨损、电弧及其他损伤；经常安装在船型悬垂线夹中和支柱绝缘子上。预绞式护线/修补条并可作为修补条，用来修补已受到损伤的导线，使它恢复原来的机械强度及导电性能。
预绞式护线条和预绞式短护线条的结构简单，一组预绞丝形成空管，缠绕在导线上并握紧导线，从而保护导线。
特点分散导线所受应力可提高导线抗振能力，延长导线使用寿命。
安装简便；无需任何专用工具，徒手便可现场安装，一个人即可完成。
安装质量易于保证；不需训练，肉眼即可进行检验，外观简洁美观。
| 型号 | 适用导线 | 线径 (mm) | 内径 (mm) | 长度 (mm) | 每组根数 | 重量 (kg) | |
| 型号 | 外径 (mm) | ||||||
| FYH-95/15 | LGJ-95/15 | 13.61 | 3.6 | 11.4 | 1400 | 13 | 0.5 |
| FYH-95/20 | LGJ-95/20 | 13.87 | 3.6 | 11.4 | 1400 | ||
| FYH-95/55 | LGJ-95/55 | 16.00 | 3.6 | 13.3 | 1500 | 16 | 0.6 |
| FYH-120/7 | LGJ-120/7 | 14.50 | 3.6 | 12.0 | 1400 | 14 | 0.6 |
| FYH-120/20 | LGJ-120/20 | 15.07 | 3.6 | 12.5 | 1400 | ||
| FYH-120/25 | LGJ-120/25 | 15.74 | 3.6 | 13.0 | 1400 | ||
| FYH-120/70 | LGJ-120/70 | 18.00 | 4.6 | 14.9 | 1800 | 14 | 0.8 |
| FYH-150/8 | LGJ-150/8 | 16.00 | 3.6 | 13.3 | 1500 | 16 | 0.6 |
| FYH-150/20 | LGJ-150/20 | 16.67 | 3.6 | 14.7 | 1500 | 16 | 0.7 |
| FYH-150/25 | LGJ-150/25 | 17.10 | 3.6 | 14.2 | 1500 | ||
| FYH-150/35 | LGJ-150/35 | 17.50 | 3.6 | 14.5 | 1500 | ||
| FYH-185/10 | LGJ-185/10 | 18.00 | 4.6 | 14.9 | 1800 | 14 | 1.2 |
| FYH-185/25 | LGJ-185/25 | 18.90 | 4.6 | 15.7 | 1800 | 14 | 1.3 |
| FYH-185/30 | LGJ-185/30 | 18.88 | 4.6 | 15.7 | 1800 | ||
| FYH-185/45 | LGJ-185/45 | 19.60 | 4.6 | 16.3 | 1800 | ||
| FYH-210/10 | LGJ-210/10 | 19.00 | 4.6 | 15.9 | 1800 | 14 | 1.3 |
| FYH-210/25 | LGJ-210/25 | 19.98 | 4.6 | 16.6 | 1800 | ||
| FYH-210/35 | LGJ-210/35 | 20.38 | 4.6 | 16.9 | 1800 | ||
| FYH-210/50 | LGJ-210/50 | 20.86 | 4.6 | 17.3 | 1800 | ||
| FYH-240/30 | LGJ-240/30 | 21.60 | 4.6 | 17.9 | 1900 | 16 | 1.4 |
| FYH-240/40 | LGJ-240/40 | 21.66 | 4.6 | 17.9 | 1900 | ||
| FYH-240/55 | LGJ-240/55 | 22.40 | 4.6 | 17.9 | 1900 | ||
| FYH-300/15 | LGJ-300/15 | 23.01 | 6.3 | 18.6 | 2000 | 14 | 2.3 |
| FYH-300/20 | LGJ-300/20 | 23.43 | 6.3 | 19.1 | 2000 | ||
| FYH-300/25 | LGJ-300/25 | 23.76 | 6.3 | 19.4 | 2000 | ||
| FYH-300/40 | LGJ-300/40 | 23.94 | 6.3 | 19.7 | 2000 | ||
| FYH-300/50 | LGJ-300/50 | 24.26 | 6.3 | 19.9 | 2000 | ||
| FYH-300/70 | LGJ-300/70 | 25.20 | 6.3 | 20.1 | 2000 | ||
| FYH-400/20 | LGJ-400/20 | 26.91 | 6.3 | 20.9 | 2000 | ||
| FYH-400/25 | LGJ-400/25 | 26.64 | 6.3 | 22.1 | 2200 | 14 | 2.8 |
| FYH-400/35 | LGJ-400/35 | 26.82 | 6.3 | 22.3 | 2200 | ||
| FYH-400/50 | LGJ-400/50 | 27.63 | 6.3 | 23.0 | 2200 | ||
| FYH-400/65 | LGJ-400/65 | 28.00 | 6.3 | 23.2 | 2200 | ||
| FYH-400/95 | LGJ-400/95 | 29.14 | 7.8 | 24.8 | 2500 | ||
| FYH-500/35 | LGJ-500/35 | 30.00 | 7.8 | 24.9 | 2500 | 16 | 3.5 |
| FYH-500/45 | LGL-500/45 | 30.00 | 7.8 | 24.9 | 2500 | ||
| FYH-500/65 | LGJ-500/65 | 30.96 | 7.8 | 25.7 | 2500 | ||
| FYH-630/45 | LGJ-600/45 | 333.60 | 7.8 | 27.9 | 2500 | 15 | 5.3 |
| FYH-630/55 | LGJ-630/55 | 34.32 | 7.8 | 28.5 | 2500 | ||
| FYH-630/80 | LGJ-630/80 | 34.82 | 7.8 | 28.9 | 2500 | ||
| FYH-800/55 | LGJ-800/55 | 38.40 | 7.8 | 31.8 | 2500 | 17 | 6.0 |
| FYH-800/70 | LGJ-800/70 | 38.58 | 7.8 | 32.1 | 2500 | ||
| FYH-800/100 | LGJ-800/100 | 38.98 | 7.8 | 32.3 | 2500 | ||
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